How many fronts are there?
What is a front?
where two different air masses meet
where it rains
What is the study of space?
What is a occlued front?
where a cold and warm front meet
a front from the north
What is a temperature gradient?
a change in temperature across a distance
What storm forms at the edge of a cold front?
What is anything that revolves around our sun?
What is engineering?
making and improving things
study of clouds
How much water is Earth?
Earth has more humans than other people